package com.t8;

/**
 * Created by xuyiwei on 2018/7/19.
 */
class Super {
    public int field = 0;
    public int getField() { return field; }
}

class Sub extends Super {
    public int field = 1;
    public int getField() { return field; }
    public int getSuperField() { return super.field; }
}

public class FieldAccess {
    public static void main(String[] args) {
        Super sup = new Sub(); // Upcast
        System.out.println("sup.field = " + sup.field +
                ", sup.getField() = " + sup.getField());
        //sup.field = 0, sup.getField() = 1
        Sub sub = new Sub();
        System.out.println("sub.field = " +
                sub.field + ", sub.getField() = " +
                sub.getField() +
                ", sub.getSuperField() = " +
                sub.getSuperField());
        //sub.field = 1, sub.getField() = 1, sub.getSuperField() = 0
    }
}